USGS · 06307616

TONGUE R RIVER

USGS · 06307616LIVE

Tongue R at Birney Day School Br nr Birney MT

ROSEBUD COUNTY, MT45.4116°N, -106.4574°W Updated 12 hr ago

FLOW RATE

300cfs

AIR TEMP

66°F

WIND

2mph W

FISH INDEX

81SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

300cfs 36.2% vs avg

Optimal band: 161–217 cfs

PERIOD HIGH

507cfs

PERIOD LOW

62cfs

RUNNABLE

last 1 year in band

Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

10.5in

≈ normal

10.51 in of precipitation so far this year — about average for this point in the season (normal 10.81 in).

YTD Total

10.5in

This year so far

Normal to Date

10.8in

30-yr average

Typical Range

7.7–13.4in

10th–90th pct YTD

Departure

-3%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 0.52" · normal 0.77" (0.3–1.2)

Jan

Feb: 0.59" · normal 0.78" (0.5–1.1)

Feb

Mar: 2.33" · normal 1.34" (0.6–2.3)

Mar

Apr: 2.25" · normal 2.30" (1.4–3.4)

Apr

May: 1.79" · normal 3.07" (1.1–5.1)

May

Jun: 2.88" · normal 2.11" (1.1–3.1)

Jun

Jul: 0.14" (so far)· normal 1.14" (0.3–2.3)

Jul

Aug: normal 0.87" (0.3–1.6)

Aug

Sep: normal 1.43" (0.5–2.6)

Sep

Oct: normal 1.73" (0.8–3.2)

Oct

Nov: normal 0.82" (0.3–1.3)

Nov

Dec: normal 0.68" (0.2–1.2)

Dec

Baseline 1991–2020 · Source: Open-Meteo12:44 PM

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Station Location

45.4116, -106.4574

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DATA · USGS · NOAA · NWSUPDATED 2026-07-08 00:00 UTC

Site #06307616·USGS

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